Jointed welting



c.. n. LIBB'Y.

JOINTED WLTING.

APPLICATION FILED MAR,26. 1919.

1,353,351., l Pawmasepu 21,1920;

3 ;.Crrnsrnnn YIi-Iiisir; 'or MLnEnl-iiiisaac To azzaaaaamay amara: '-1'Bs^nfknyvathat 1,'formaran'Dynaygja l form of long strips which are composed of a plurality of relatively short strips of leather, the skived ends of which overlap and are secured together by cement. These jointed ends are subjected not only to direct tension strains but also to the bending strains resulting from bending the welting in its own plane or edgewise as it is applied to the rounded or curved outline of a shoe.

rUnless the ends of the strips are firmly secured together they are liable to separate or break apart, particularly at the toe portion of a shoe where the bending is the sharpest.

The object of the present invention is to produce a jointed welting which shall be capable of resisting not only the usual direct tension strains without danger of separation at the joints but also the bending strains incident to the attachment of the welting 4to the rounded or curvedeportions of a shoe.

To the above end the invention consists in the welting hereinafter described and claimed.

The preferred embodiment of the invention is illustrated in the accompanying drawings, in which Figure 1 is a perspective view of a portion of a strip of welting show# ing the improved joint; Fig. 2 is av plan view of one end of one of the short strips of which the welting is composed, showing the skived and grooved face which is to be united with a corresponding face on another similar strip; Fig. 3 is a section on the line 3-3 of Fig. 2; Fig. 4 is a plan view of a portion of a strip of welting showing the improved joint; Fig. 5 is a sectionon the line 5 5 of Fig. 4, illustrating the interlocking of the grooved ends; and Fig. 6 illustrates in section a modification where s #Specification/of ie'tters Batent.

. LEATHER; QOM'EANY" 0E' BQSTONVMASSACEUSETTS@ A' CQRPORAITQN '0F MAII'NEH f- (any {siisorj-nije' jointed .sndslri-iie wen strips 'As' 'shawn 'n are drawings' un. Siia'stripssg'fof'f waren wenn@ is'fetsiwsed,fiarq gritar er scanditihernias"in the. usan mannerfas 'indicated 9 (so: l that'the thick-fy ness of the strip is tapered'(longitudinally. 4

pressed together so that the ridges ofeach face will lit into the grooves of the opposed face.

It will be observed that grooving the skived endsiof the welt strips not only increases the surfaces to which the cement may be applied and may adhere but by the interlocking, as it were, of the grooves and ridges, laterali Vor angular slipping of the joined ends is vprevented when the ,welting is bent edgewise to conform to thecurva` ture of the shoe, particularly around the toe portion.

in Fig. 6 is illustrated a modification of the present invention. This figure shows in cross-section the joint between twov adjacent welt strips, only one of which is provided at its joined end with grooves and ridges, the contacting face of the other welt strip being, substantially plane. With this modified form of the present invention not only is the cementing surface on one of the strips increased, but the cement, which is applied to the grooved face in a quantity suiiicient to fill the grooves, hardens and uniting with the plane face of the other strip forms practically a series of ridges and grooves which interlock with the grooves and ridges integrally formed on the other strip and se-' curely hold the joined strips together.

While the present invention has been Y shown and described in its preferred form,

the invention is not limited thereto but may be embodied in other constructions and arrangements. Where. in the' claims the term longitudinal is employed, this is to be `understood as meaning a direction generally Having thus described the present invention, What is claimed is 1.'An article of manufacture consisting of a strip of Welting formed of a plurality of shorter strips With their ends overlapping Vand secured together by adhesive material, the overlapping portions of the surface of one YofV said strips being provided With longitudinal grooves in its contacting portion. i

. 2. An article of .manufacture consisting of'a strip of Welting formed of a plurality.

of shorter Ystrips With their ends overlapping and securedtogether and provided on their opposed overlapping contacting surface portions with interlocking longitudinal ridges and' grooves.

3. An article of manufacture consisting of a strip of Welting formed of a plurality of shorter strips With their ends"y overlapping and cemented together,'the contacting surfaces being beveled and provided With longitudinal grooves.

4. An article of manufacture consisting'VV of a strip of Welting formed of a plurality of shorter strips With their ends overlapping and cemented together, the contacting surfaces being beyeled and provided on their opposed overlapping" surface vportions with a pluralityv of substantially parallel and relatively narrow interlocking longitudinalridgesand grooves extending substantially the length of the overlapping surfaces.. CHESTER D. LIBBY. 

